Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.1 on date 26-02-2021 and time 06:14:40 (Italy) in region 7 km SE Pietralunga (PG)

A magnitude ML 1.1 earthquake occured in region: 7 km SE Pietralunga (PG), on

  • 26-02-2021 05:14:40 (UTC)
  • 26-02-2021 06:14:40 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.3890, 12.4920 at 8 km depth.

The earthquake was located by: Sala Sismica INGV-Roma.

Search earthquakes: Any within 30 km radius

The values of hypocentral coordinates and magnitude may be revised at a later time as more information becomes available.

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Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Pietralunga PG 7 2111 2111
Gubbio PG 8 32216 34327
Montone PG 14 1680 36007
Scheggia e Pascelupo PG 14 1393 37400
Cantiano PU 15 2245 39645
Umbertide PG 16 16681 56326
Costacciaro PG 18 1216 57542
Apecchio PU 20 1882 59424

Municipalities with at least 50000 inhabitants

An earthquake occurred to
32 Km N of Perugia (166134 inhabitants)
50 Km E of Arezzo (99543 inhabitants)
51 Km NW of Foligno (57155 inhabitants)
66 Km SW of Fano (60888 inhabitants)
67 Km SW of Pesaro (94582 inhabitants)
75 Km S of Rimini (147750 inhabitants)
86 Km S of Cesena (96758 inhabitants)
87 Km W of Ancona (100861 inhabitants)
93 Km N of Terni (111501 inhabitants)
94 Km E of Siena (53903 inhabitants)
100 Km SE of Forlì (117913 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev100 		ML 1.1 2021-02-26
05:14:40		 43.3888 12.4915 8 2021-02-26
05:22:16		 Sala Sismica INGV-Roma 87491211
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-02-26 05:14:40 ± 0.06
Latitude 43.3888 ± 0.0027
Longitude 12.4915 ± 0.0037
Depth (km) 8 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 87491211

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 297
Semi-minor axis of confidence ellipse (meter) 223
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 220
Circular confidence region, given by single value of horizontal uncertainty (meter) 300.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 92
Number of associated phases, regardless of their use for origin computation 22
Number of defining phases 22
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.18
Epicentral distance of station closest to the epicenter (degree) 0.06205
Epicentral distance of station farthest from the epicenter (degree) 0.55848
Number of stations at which the event was observed 16
Number of stations from which data was used for origin computation 16
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.3
Num. used stations 28
Type of magnitude ML
Reference to an origin 87491211
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-02-26 05:22:16
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.FDMO.HHZ. 2021-02-26T05:14:52.38 1.0 positive manual P 129 61.9935 50 0.17 22
IV.EL6.EHZ. 2021-02-26T05:14:50.26 0.3 undecidable manual P 97 49.617 50 -0.05 70
IV.SSFR.HHZ. 2021-02-26T05:14:49.79 0.1 undecidable manual S 77 23.9538 109 0.07 97
IV.CAFI.HHZ. 2021-02-26T05:14:49.40 0.3 undecidable manual P 261 42.9237 50 0.14 69
IV.FRON.EHZ. 2021-02-26T05:14:49.77 0.1 undecidable manual S 53 23.6541 110 0.16 95
IV.APEC.HHZ. 2021-02-26T05:14:48.53 0.1 undecidable manual S 343 19.6692 113 0.21 95
IV.MPAG.EHZ. 2021-02-26T05:14:47.77 0.1 undecidable manual P 39 34.2435 50 -0.17 93
IV.PIEI.HHZ. 2021-02-26T05:14:47.53 0.1 undecidable manual S 12 16.6722 117 0.16 96
IV.PARC.HHZ. 2021-02-26T05:14:47.84 0.1 undecidable manual P 325 35.2425 50 -0.25 92
IV.NARO.HHZ. 2021-02-26T05:14:46.07 0.3 undecidable manual P 16 25.6521 108 -0.23 70
IV.ATCC.EHZ. 2021-02-26T05:14:46.56 0.1 undecidable manual P 152 25.5522 108 0.27 93
IV.APEC.HHZ. 2021-02-26T05:14:45.38 0.1 undecidable manual P 343 19.6692 113 0.2 95
IV.FRON.EHZ. 2021-02-26T05:14:45.78 0.1 undecidable manual P 53 23.6541 110 -0.15 95
IV.FOSV.EHZ. 2021-02-26T05:14:45.99 0.1 undecidable manual P 116 24.1536 109 -0.02 98
IV.ATPI.EHZ. 2021-02-26T05:14:45.18 0.1 undecidable manual S 314 9.9789 130 -0.23 96
IV.SSFR.HHZ. 2021-02-26T05:14:45.91 0.1 undecidable manual P 77 23.9538 109 -0.08 97
IV.BADI.EHZ. 2021-02-26T05:14:45.93 0.1 undecidable manual P 304 23.9538 109 -0.06 97
IV.MURB.HHZ. 2021-02-26T05:14:44.46 0.1 undecidable manual P 169 14.1747 121 0.26 95
IV.ATFO.HHZ. 2021-02-26T05:14:44.35 0.1 undecidable manual S 111 6.8931 141 -0.32 95
IV.PIEI.HHZ. 2021-02-26T05:14:44.79 0.1 undecidable manual P 12 16.6722 117 0.16 96
IV.ATPI.EHZ. 2021-02-26T05:14:43.47 0.1 undecidable manual P 314 9.9789 130 -0.03 100
IV.ATFO.HHZ. 2021-02-26T05:14:42.96 0.1 undecidable manual P 111 6.8931 141 -0.11 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ATFO.HHN. ML:1.5 0.0005394999999999999 0.18 AML other m 2021-02-26T05:14:44.70
IV.ATFO.HHE. ML:1.6 0.0006765 1.5 AML other m 2021-02-26T05:14:44.01
IV.ATPI.EHN. ML:1.3 0.000282 0.28 AML other m 2021-02-26T05:14:45.45
IV.ATPI.EHE. ML:1.2 0.00021349999999999999 1.16 AML other m 2021-02-26T05:14:47.06
IV.MURB.HHE. ML:1.4 0.000248 0.96 AML other m 2021-02-26T05:14:48.98
IV.PIEI.HHE. ML:1.5 0.00027600000000000004 0.34 AML other m 2021-02-26T05:14:48.55
IV.PIEI.HHN. ML:1.1 0.00011899999999999999 0.14 AML other m 2021-02-26T05:14:48.56
IV.APEC.HHN. ML:1.2 0.0001185 0.32 AML other m 2021-02-26T05:14:49.38
IV.MURB.HHN. ML:1.4 0.00024249999999999999 0.88 AML other m 2021-02-26T05:14:49.72
IV.FRON.EHE. ML:0.9 0.0000505 1.32 AML other m 2021-02-26T05:14:50.17
IV.NARO.HHE. ML:1.0 0.00006545 0.18 AML other m 2021-02-26T05:14:50.25
IV.APEC.HHE. ML:1.2 0.00011410000000000001 0.56 AML other m 2021-02-26T05:14:50.34
IV.BADI.EHE. ML:1.2 0.00010889999999999999 0.66 AML other m 2021-02-26T05:14:50.39
IV.SSFR.HHE. ML:1.2 0.0001021 0.12 AML other m 2021-02-26T05:14:50.46
IV.BADI.EHN. ML:1.2 0.000103 0.5 AML other m 2021-02-26T05:14:50.99
IV.FRON.EHN. ML:1.0 0.0000699 1 AML other m 2021-02-26T05:14:51.05
IV.SSFR.HHN. ML:1.3 0.000126 0.78 AML other m 2021-02-26T05:14:51.55
IV.ATCC.EHE. ML:1.1 0.00007455000000000001 0.82 AML other m 2021-02-26T05:14:51.54
IV.FOSV.EHN. ML:0.7 0.000027700000000000002 0.28 AML other m 2021-02-26T05:14:52.71
IV.ATCC.EHN. ML:1.0 0.000053400000000000004 0.24 AML other m 2021-02-26T05:14:52.93
IV.NARO.HHN. ML:0.8 0.000039750000000000004 0.74 AML other m 2021-02-26T05:14:52.46
IV.MPAG.EHE. ML:0.8 0.000024500000000000003 0.8 AML other m 2021-02-26T05:14:53.45
IV.MPAG.EHN. ML:0.8 0.000024299999999999998 0.84 AML other m 2021-02-26T05:14:54.01
IV.PARC.HHN. ML:0.8 0.0000263 1.02 AML other m 2021-02-26T05:14:54.16
IV.FOSV.EHE. ML:0.5 0.00002205 0.98 AML other m 2021-02-26T05:14:55.21
IV.PARC.HHE. ML:0.9 0.0000288 0.72 AML other m 2021-02-26T05:14:55.59
IV.CAFI.HHE. ML:0.7 0.000014999999999999999 0.16 AML other m 2021-02-26T05:14:55.97
IV.CAFI.HHN. ML:0.7 0.00001365 0.14 AML other m 2021-02-26T05:14:55.95
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download